ASTROSAT CZTI

Data Quality Report

Orbit 15124

Creation date: 2024-06-27T17:04:04.486847
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G08_046T09_9000002226_15124cztM0_level2.evt modeM0/AS1G08_046T09_9000002226_15124cztM0_level2_quad_clean.evt
Size (bytes)453,346,56097,836,480
Size432.3 MB 93.3 MB
Events in quadrant A3,009,642640,453
Events in quadrant B3,669,888656,084
Events in quadrant C3,551,452633,828
Events in quadrant D3,078,394600,633

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129593
B0148672
C0142822
D0134672

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6180220.355987%
B6180911.472492%
C6180901.456311%
D6180851.375405%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7476 6182 0 0 0.00% 0.00%
B 7476 6182 34 34 0.45% 0.55%
C 7476 6182 37 37 0.49% 0.60%
D 7476 6182 57 57 0.76% 0.92%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 12 189 59159 381.47 764 750 153.1
A 8 6 7211 42.2 764 750 153.1
A 0 226 6872 39.98 764 750 153.1
B 3 64 545330 3799.4 774 757 143.3
B 4 173 17443 116.42 774 757 143.3
B 12 111 16105 107.08 774 757 143.3
C 3 233 452163 2619.19 752 758 172.3
C 4 254 149832 864.97 752 758 172.3
C 14 234 10221 54.91 752 758 172.3
D 2 33 87736 484.91 740 718 179.5
D 10 70 59577 327.99 740 718 179.5
D 13 172 53576 294.55 740 718 179.5

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter